Pipe or hose coupling.



No. 786,929. PATBNTBD Amin, 1905. w. J; WL'LIAMs.

HPB v0R HOSE GOUPLING. TIPPLIo'qIoN PILEDJULS; zo, i904.

No. mesas.

, UNITED 'STATES patented April 1i, 1905.

PATENT OFFICE.

PENNSYLVANIA,- ASSIGNOR OF ONE-HALF. TO WILLIAM PITTSBURG, PENNSYLVANIA.

T. WAITE, OF

PIPE OR HOSE COUPLING.

SPECIFICATION forming part of Letters Patent No. 786,929, dated April11, 1905.

Application filed July 20, 19.04. Serial No. 217,351.

To a/ZZ whom t may concern:

Beit known'that I, WILLIAM J. WILLIAMS, a citizen of the United Statesof America, residing in Baldwin township, in the county of Allegheny andState of Pennsylvania, have will be rmly and rigidly held and theconnection between the same will be non-leakable.

Another object of this invention is to provide a novel form of lock forsecuring two sections of pipe together, the lock being so constructedthat it may be quickly and easily manipulated to secure the members inengagement with each other whereby the connection between thepipe-sections will be non-leakable and of such a construction that thesame will withstand the rough use to which pipe connections, such ashose-couplings, are often'- times subjected.

The invention has for its further object the construction of a pipeconnection which will be strong and durable, extremely simple inconstruction, comparatively inexpensive to manufacture,and highlyefficient when used tok secure two pipe-sections together.

Brieliy described,the pipe-coupling consists of providing each member ofthe pipe to be secu red together with a plurality of outwardlyextendingwedge-shaped arms which are provided with teeth, and when the twosections are placed together theseoutwardly-extending arms are adaptedto interlock with one another, and over the interlocking arms is adaptedto be placed a sleeve which has wedgeshaped grooves formed therein, andin these sleeves the outwardly extending arms are adaptedto impinge. Iemploy a washer which is interposed between ther ends of thepipesections, and I preferably form one section of.

pipe with a concave seat in 'which the end of the other pipe-section isadapted to fit.

All of the above construction will be hereinafter more fully describedand then specifically pointed out inthe claims, and, referring to thedrawings accompanying this application, like numerals of referenceindicate like parts throughout the several views, in which- Figure 1 isa side elevation of my improved coupling. Fig. 2 is a side elevation ofthe coupling, showing the locking-sleeve in section and partly removedfrom the same. Fig. 3 is a detail perspective view of one end of a pipeconstructed in accordance with my invention. Fig. 4 is a longitudinalsectional view of a portion of a pipe in which the end of the pipeillustrated in Fig. 3 is adapted to engage. Fig. 5 is an end view of myimproved coupling. Fig. 6 is a longitudinal sectional view of the end oftwo pipes secured together with the locking-sleeve removed, and Fig. 7is an end view of the locking-sleeve.

To put my invention into practice, I employ two sections of pipe 1 and2, and upon the confronting ends of these sections I construct Inyimproved lock for securing the two end of the pipe is tapered, asdesignated by the reference-numeral 5, the object of which will behereinafter more fully described. Each one of the arms l is wedge-shapedin form, as designated by the reference-numeral 6, and the one side ofeach arm is preferably cut away to form a taper 7, while the oppositeside of each arm is provided with teeth 8.

' The construction employed on the pipe-section 2 will now be described,and reference will be had to Fig. 4 of the drawings. This pipe-sectionis provided with outwardly-extending raised arms 9 9, which are alsoformed integral with the end of the pipe, this end having a cone-shapedseat 1() formed therein to receive the tapered end 5 oi' thepipe-section 1. The upwardly-extending arms 9 are constructed similar tothe arms 4 4 of the pipesection 1, with the exception that they areshorter than the arms 4 4, as clearly shown in Fig. 2 of the drawings.These arms 9 are also tapered, as designated by the referencenumeral 11,and are also formed with teeth 12`upon their one side.

The reference-numeral 14 indicates an annular cone-shaped washer, whichis preferably made of rubber, leather, or the like material, that isplaced in the cone-shaped seat 10 of the pipe-section 2 prior tosecuring the two sections together.

The reference numeral 15 designates a sleeve which, as illustrated inthe accompanying drawings, is Octagon in cross-section, although thissleeve may be formed square or hexagon, if desired, and the exteriorsides of the ends of the sleeve are tapered, as designated by thereference numeral 16. The sleeve is made with a bore 17 of the samediameter as the pipe 1; but the inner sides of the sleeve are providedwith wedge-shaped grooves 18, which form wedge-shaped ribs 19.

The manner of securing the two pipe-seetions together that areconstructed in accordance with my invention is as follows: The twopipe-sections 1 and 2 are placed together by placing the arms 9 of thepipe-section 2 between the arms 4 of the pipe-section 1 and slightlyrotating one of the pipe-sections until the teeth 12 of the arms 9engage the teeth 8 of the arms 4. This movement will iirmly seat thetapered end 5 of the pipe-section 1 within the cone-shaped `seat 10 ofthe pipesection 2, and the sleeve 15 is then moved along thepipe-section l to engage the arms 4 and 9. This sleeve is preferablymounted upon one of the sections ot' the pipe, as illustrated in Figs. 1and 2 of the drawings, and is mounted upon the section 1, and thissleeve is adapted to be moved along to engage over the arms 4 and 9, thetapered ribs 19 engaging between the space which exists between the arms9 and the arms 4, while these arms will engage in the tapered slotsformed between the ribs 1.9 19 of the sleeve 15. The action of forcingthis sleeve over the arms will wedge the same in position, and the arms4 and 9 will be held in engagement with each other and the pipe-sectionswill be prevented from becoming disconnected by the teeth 8 ot' the arms4 engaging the teeth 12 ot the arms 9, the wedging action of the sleevefirmly holding the teeth together.

It will be observed in the drawings that l have illustrated four arms asbeing formed on each of the pipe-sections, and I have employed thisnumber owing to the fact that upon small sections oi' pipe this numberof interlocking arms will iirmly lock the confronting ends ot' twosections together, and l wish it to be understood that on large sectionsoi pipe where this coupling is to be employed any number of arms may beused which will insure a perfeet locking of the two sections together.ln Fig. 6 of the drawings it will be seen how the arms overlap eachsection of pipe and the connection between the bores of each pipe willbe so formed that it will be impossible for any leak to occur to thecone-shaped recess in which a gasket or washer is mounted.

It will be noted that the general arrangement of the arms upon the endsof the pipesections may be slightly changed without departing from thescope of the invention.

That I claim, and desire to secure by Letters Patent, is

1. The combination with two pipe-sections, of a plurality ooutwardly-extendi11g wedgeshaped toothed arms, formed integral with eachof said pipe-sections, a washer interposed between said sections, and asleeve having interior ribs to engage between the arms when the latterare engaged and adapted to lock the arms of one pipe-section intoengagement with the arms of the other pipe-section, substantially asdescribed.

2. A pipe-coupling comprising two sections of pipe, one section of pipehaving a coneshaped recess formed therein, the other section of pipehaving a tapered end and adapted to iit within said recess, a washerinterposed between said sections of pipe, a plurality oioutwardlyextending arms formed integral with each of said pipe-sectionsand adapted to interlock within each other, and means coinprising asleeve having interior ribs adapted to engage between the arms when theteeth el the latter are in mesh for securing the arms of onepipe-section in engagement with the arms of the other pipe-section.

3. The combination with two pipe-sections, of a plurality ofoutwardly-extending wedgeshaped arms formed integral with each section,said arms having teeth formed therein, a sleeve, said sleeve havingwedge shaped grooves vformed therein in which said arms are adapted toengage.

4. A pipe-coupling comprising two sections of pipe, the end of one ofsaid sections having a cone-shaped recess formed therein, the end of theother section being formed tapered and adapted to iit within saidrecess, a washer interposed between said sections, a plurality IOO ofoutwardly-extending Wedge-shaped arms formed integral With eac-hsection, said arms being formed upon the periphery of each seotion andhaving teeth formed therein, a sleeve having Wedge-shaped grooves formedtherein in which said arms are adapted to engage.

5. A coupling comprising two pipe-sections, arms carried by each of saidsections, said arms having teeth formed thereon, and a sleeve adapted toslide over said arms and look the IO teeth of each arm in engagementwith the other, substantially as described.

In testimony whereof I aix my signature in the presence of tWoWitnesses.

, v WILLIAM J. WILLIAMS.

Witnesses:

E. E. POTTER, K. H. BUTLER.

